<u>Answer:</u> The weight fraction of ethanol in the mixture is
<u>Explanation:</u>
We are given:
Mass of water = 1 kg = 2.205 lb (Conversion factor: 1 kg = 2.205 lb)
Mass of ethanol = 1.9 lb
Mass of ethyl acetate = 4.6 lb
Mass of mixture = [2.205 + 1.9 + 4.6] = 8.705 lb
To calculate the percentage composition of ethanol in mixture, we use the equation:

Mass of mixture = 8.705 lb
Mass of ethanol = 1.9 lb
Putting values in above equation, we get:

Hence, the weight fraction of ethanol in the mixture is 21.8 %
P2 = 54.6 kPa
Explanation:
Given:
V1 = 10.0 L. V2 = 50.0 L
P1 = 273 kPa. P2 = ?
We can use Boyle's law to solve this problem.
P1V1 = P2V2
Solving for P2,
P2 = (V1/V2)P1
= (10.0 L/50.0 L)(273 kPa)
= 54.6 kPa
Answer: There are two types of crust; oceanic and continental. Oceanic crust is denser and thinner and mainly composed of basalt.
Explanation:
The crust This is the outside layer of the earth and is made of solid rock, mostly basalt and granite. Oceanic crust is denser and thinner and mainly composed of basalt.
Physical because ur not changing anything ur just smelling it